Matteo Breschi, Richard O`Shaughnessy, Jacob Lange, Ofek Birnholtz
Preprint on arxiv:1903.05982 [gr-qc]
Published in Class.Quant.Grav. 36 (2019) 24, 245019
Michalis Agathos, Francesco Zappa, Sebastiano Bernuzzi, Albino Perego, Matteo Breschi, David Radice
Preprint on arxiv:1908.05442 [gr-qc]
Published in Phys.Rev.D 101 (2020) 4, 044006
Matteo Breschi, Sebastiano Bernuzzi, Francesco Zappa, Michalis Agathos, Albino Perego, David Radice, Alessandro Nagar
Preprint on arxiv:1908.11418 [gr-qc]
Published in Phys.Rev.D 100 (2019) 10, 104029
Sebastiano Bernuzzi, Matteo Breschi, Boris Daszuta, Andrea Endrizzi, Domenico Logoteta, Vsevolod Nedora, Albino Perego, Federico Schianchi, David Radice, Francesco Zappa, Ignazio Bombaci, Nestor Ortiz
Preprint on arxiv:2003.06015 [astro-ph.HE]
Published in Mon.Not.Roy.Astron.Soc. 497 (2020) 2, 1488-1507
Rossella Gamba, Matteo Breschi, Sebastiano Bernuzzi, Michalis Agathos, Alessandro Nagar
Preprint on arxiv:2009.08467 [gr-qc]
Published in Phys.Rev.D 103 (2021) 12, 124015
Stefano Schmidt, Matteo Breschi, Rossella Gamba, Giulia Pagano, Piero Rettegno, Gunnar Riemenschneider, Sebastiano Bernuzzi, Alessandro Nagar, Walter Del Pozzo
Preprint on arxiv:2011.01958 [gr-qc]
Published in Phys.Rev.D 103 (2021) 4, 043020
Matteo Breschi, Albino Perego, Sebastiano Bernuzzi, Walter Del Pozzo, Vsevolod Nedora, David Radice, Diego Vescovi
Preprint on arxiv:2101.01201 [astro-ph.HE]
Published in Mon.Not.Roy.Astron.Soc. 505 (2021) 2, 1661-1677
bajes: Bayesian inference of multimessenger astrophysical data, methods and application to gravitational-waves Matteo Breschi, Rossella Gamba, Sebastiano Bernuzzi
Preprint on arxiv:2102.00017 [gr-qc]
Published in Phys.Rev.D 104 (2021) 4, 042001
Gunnar Riemenschneider, Piero Rettegno, Matteo Breschi, Angelica Albertini, Rossella Gamba, Sebastiano Bernuzzi, Alessandro Nagar
Preprint on arxiv:2104.07533 [gr-qc]
Published in Phys.Rev.D 104 (2021) 10, 104045
Rossella Gamba, Matteo Breschi, Gregorio Carullo, Piero Rettegno, Simone Albanesi, Sebastiano Bernuzzi, Alessandro Nagar
Preprint on arxiv:2106.05575 [gr-qc]
Published in Nat. Astron. (2022)
Matteo Breschi, Sebastiano Bernuzzi, Daniel Godzieba, Albino Perego, David Radice
Preprint on arxiv:2110.06957 [gr-qc]
Published in Phys.Rev.Lett. 128 (2022) 16, 161102
Matteo Breschi, Sebastiano Bernuzzi, Kabir Chakravarti, Alessandro Camilletti, Aviral Prakash, Albino Perego
Preprint on arxiv:2205.09112 [gr-qc]
Matteo Breschi, Sebastiano Bernuzzi, Kabir Chakravarti, Alessandro Camilletti, Aviral Prakash, Albino Perego
Preprint on arxiv:2205.09979 [gr-qc]
Alice Bonino, Rossella Gamba, Patricia Schmidt, Alessandro Nagar, Geraint Pratten, Matteo Breschi, Piero Rettegno, Sebastiano Bernuzzi
Preprint on arxiv:2207.10474 [gr-qc]
Published in Phys. Rev. D 107 (2023) 064024
Jacopo Tissino, Gregorio Carullo, Matteo Breschi, Rossella Gamba, Stefano Schmidt, Sebastiano Bernuzzi
Preprint on arxiv:2210.15684 [gr-qc]
Alejandra Gonzalez, Francesco Zappa, Matteo Breschi, Sebastiano Bernuzzi, David Radice, Ananya Adhikari, Alessandro Camilletti, Swami Vivekanandji Chaurasia, Georgios Doulis, Surendra Padamata, Alireza Rashti, Maximiliano Ujevic, Bernd Brügmann, William Cook, Tim Dietrich, Albino Perego, Amit Poudel, Wolfgang Tichy
Preprint on arxiv:2210.16366 [gr-qc]
Alejandra Gonzalez, Rossella Gamba, Matteo Breschi, Francesco Zappa, Gregorio Carullo, Sebastiano Bernuzzi, Alessandro Nagar
Preprint on arxiv:2212.03909 [gr-qc]
Matteo Breschi, Gregorio Carullo, Sebastiano Bernuzzi
Preprint on arxiv:2301.09672 [gr-qc]
Jacob Fields, Aviral Prakash, Matteo Breschi, David Radice, Sebastiano Bernuzzi, André da Silva Schneider
Preprint on arxiv:2302.11359 [astro-ph.HE]
Rossella Gamba, Matteo Breschi, Sebastiano Bernuzzi, Alessandro Nagar, William Cook, Georgios Doulis, Francesco Fabbri, Néstor Ortiz, Amit Poudel, Alireza Rashti, Wolfgang Tichy, Maximiliano Ujevic
Preprint on arxiv:2307.15125 [gr-qc]
Aviral Prakash, Ish Gupta, Matteo Breschi, Rahul Kashyap, David Radice, Sebastiano Bernuzzi, Domenico Logoteta, B.S. Sathyaprakash
Preprint on arxiv:2310.06025 [gr-qc]
Published:
More information at CAMK events.
Published:
More information on Indico.
Published:
More information on Indico.
Published:
I contributed in the organization of the fall meeting of the Physik-Combo 2020. More information on Indico.
Published:
We present Bajes, a parallel and lightweight framework for Bayesian inference of multimessenger transients based on Markov-chain–Monte-Carlo and nested sampling algorithms. We perform multimessenger inference on the binary neutron star merger GW170817 and its electromagnetic counterpart AT2017gfo. Mapping the ejecta properties resorting to fit formulae calibrated on targeted numerical relativity simulations, it is possible to constrain the measurement of the reduced tidal parameter to Λ = 430±160 at the 90% confidence level. This information can be traslated in terms of the neutron star equation of state, predicting a radius of an irrotational neutron star of 1.4 M⊙ of 11.99±0.84 km. Furthermore, we employ the gravitational-wave pipeline in the study of binary neutron star postmerger injections with a network of five detectors made of LIGO, Virgo, KAGRA and Einstein Telescope. Postmerger signals will be detectable for sources at <80 Mpc, with Einstein Telescope contributing over 90% of the total signal-to-noise ratio.
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More information at this website.
Published:
Multi-messenger observations of binary neutron star mergers can provide essential information on the properties of the nuclear equation of state of these compact objects. We perform Bayesian inference on GW170817 and its kilonova counterpart AT2017gfo, constraining the radius of a neutron star of 1.4 M⊙ to 12.2±0.5 km (1σ level). Furthermore, we show how post-merger gravitational-waves can inform us on the high-density regimes: such observation would constrain the maximum central density of a non-rotating neutron star with an error of the order of ~15% at the 90% confidence level.
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The joint detection of the GW170817 and its electromagnetic counterparts is a milestone in multi-messenger astronomy and it can provide constraints on the neutron star equation of state. The LIGO-Virgo data of GW170817 are analyzed using different template models focusing on the implications for neutron star matter properties. We study AT2017gfo using semi-analytical model showing that observational data favor multi-component anisotropic geometries to spherically symmetric profiles. By joining the GW170817 and AT2017gfo information with the NICER measurements, we constrain the radius of a neutron star of 1.4 M⊙ to 12.4±0.7 km (90% confidence level). Finally, we explore future extreme-matter constraints delivered by postmerger gravitational-waves from binary neutron star remnants with next-generation detectors. Postmerger remnants can probe the high-density regimes of the nuclear equation of state, allowing the inference of the maximum neutron star mass with an accuracy of 12% (90% confidence level). Moreover, these transients can be used to infer the presence of non-nucleonic matter phases through the inference of softening of the equation of state.
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I contributed to the “Neutron star structure and equation of state” panel. More information on GWPAW 2021 or see the program here.
Published:
More information on Indico.
M.Sc. course, Theoretisch-Physikalisches Institut, Friedrich-Schiller-Universität Jena, 2019
I contributed as tutor for the gravitational-wave class of Prof. Bernuzzi during the summer semesters 2019, 2020, 2021 and 2022. The summary page of the class can be found at Bernuzzi’s teaching page. The arguments of the class were: